MEX-M-MRS-1-2-3-EXT5-3802

Data Set Overview The Mars Express (MEX) Radio Science (MaRS) Data Archive is a timeordered collection of raw and partially processed data collected during the MEX Mission to Mars. For more information on the investigations see the MaRS User Manual MARSUSERMANUAL2004 in the MaRS DOCUMENT/MRS_DOC folder. This is a Occultation measurement covering the time 20150830T08:36:49.050 to 20150830T09:00:42.949. This data set was collected during the MEX Extended Mission Phase 5 (EXT5) 2015 to 2016. There were four types of scientific measurements conducted during Extended Mission: Solar Conjunction, Occultation, Bistatic Radar and Gravity where one has to distinguish between gravity measurements conducted on Phobos as well as global gravity measurements on Mars which were conducted around apocenter and target gravity measurements on Mars which were conducted around pericenter over interesting geophysical structures. For more information see INST.CAT or the MaRS User Manual MARSUSERMANUAL2004. For all measurements if not indicated otherwise Transponder 1 onboard the s/c was used. Transponder 2 is designed to be a backup. Mission Phase Definition It should be noted that the Mars Express (MEX) Radio Science (MaRS) group uses mission phases which deviate from the ones defined in the MISSION.CAT files given by ESA in order to keep the keywords and abbreviations consistent for Mars Express, and Rosetta. For Venus Express other definitions are used. Those mission phase abbreviations are also used in the data description field of the dataset_id. MaRS mission name | abbreviation | time span Near Earth Verification | NEV | 20030602 20030731 Cruise 1 | CR1 | 20030801 20031225 Mission Commissi truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

数据集概览
火星快车（Mars Express，简称MEX）无线电科学（MaRS）数据档案汇集了在火星快车任务期间收集的原始数据及部分处理数据，这些数据按照时间顺序排列。有关调查的更多信息，请参阅MaRS用户手册MARSUSERMANUAL2004，该手册位于MaRS文档/MRS_DOC文件夹中。本数据集覆盖了20150830T08:36:49.050至20150830T09:00:42.949的时间段的掩星测量。此数据集收集于2015至2016年的火星快车扩展任务阶段5（EXT5）。在扩展任务期间进行了四种类型的科学测量：太阳联合、掩星、双站雷达和重力测量。其中，需要区分在火卫一上进行的重力测量、在火星近拱点附近进行的全球重力测量以及在火星近心点附近针对有趣的地物理结构的重力测量。更多信息请参阅INST.CAT或MaRS用户手册MARSUSERMANUAL2004。对于所有测量，除非另有说明，否则使用搭载在航天器上的应答器1。应答器2被设计为备用。任务阶段定义
值得注意的是，火星快车（MEX）无线电科学（MaRS）小组使用的任务阶段与ESA提供的MISSION.CAT文件中定义的任务阶段有所不同，以便保持火星快车和罗塞塔的关键词和缩写的一致性。对于金星快车，则使用其他定义。这些任务阶段的缩写也用于dataset_id的数据描述字段中。MaRS任务名称 | 缩写 | 时间跨度
近地验证 | NEV | 20030602 - 20030731
巡航1 | CR1 | 20030801 - 20031225
[截断！请参阅实际数据以获取完整文本][截断！请参阅实际数据以获取完整文本]